KMS Institute of Vertebrate Paleontology and Paleoanthropology
| A new Chinese specimen indicates that 'protofeathers' in the Early Cretaceous theropod dinosaur Sinosauropteryx are degraded collagen fibres | |
Lingham-Soliar, Theagarten; Feduccia, Alan; Wang, Xiaolin ; Lingham-Soliar, T (reprint author), Univ KwaZulu Natal, Private Bag X54001, ZA-4000 Durban, South Africa.
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| 2007-08-07 | |
| 发表期刊 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
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| ISSN | 0962-8452 |
| 卷号 | 274期号:1620页码:1823-1829 |
| 文章类型 | Article |
| 摘要 | Alleged primitive feathers or protofeathers in the theropod dinosaur Sinosauropteryx have potentially profound implications concerning feather morphogenesis, evolution of flight, dinosaur physiology and perhaps even the origin of birds, yet their existence has never been adequately documented. We report on a new specimen of Sinosauropteryx which shows that the integumental structures proposed as protofeathers are the remains of structural fibres that provide toughness. The preservation in the proximal tail area reveals an architecture of closely associated bands of fibres parallel to the tail's long axis, which originate from the skin. In adjacent more exposed areas, the fibres are short, fragmented and disorganized. Fibres preserved dorsal to the neck and back and in the distal part of the tail are the remains of a stiffening system of a frill, peripheral to the body and extending from the head to the tip of the tail. These findings are confirmed in the holotype Sinosauropteryx and NIGP 127587. The fibres show a striking similarity to the structure and levels of organization of dermal collagen. The proposal that these fibres are protofeathers is dismissed.; Alleged primitive feathers or protofeathers in the theropod dinosaur Sinosauropteryx have potentially profound implications concerning feather morphogenesis, evolution of flight, dinosaur physiology and perhaps even the origin of birds, yet their existence has never been adequately documented. We report on a new specimen of Sinosauropteryx which shows that the integumental structures proposed as protofeathers are the remains of structural fibres that provide toughness. The preservation in the proximal tail area reveals an architecture of closely associated bands of fibres parallel to the tail's long axis, which originate from the skin. In adjacent more exposed areas, the fibres are short, fragmented and disorganized. Fibres preserved dorsal to the neck and back and in the distal part of the tail are the remains of a stiffening system of a frill, peripheral to the body and extending from the head to the tip of the tail. These findings are confirmed in the holotype Sinosauropteryx and NIGP 127587. The fibres show a striking similarity to the structure and levels of organization of dermal collagen. The proposal that these fibres are protofeathers is dismissed. |
| 关键词 | Theropod Sinosauropteryx Collagen Protofeather |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| URL | 查看原文 |
| 关键词[WOS] | INTEGUMENTARY STRUCTURES ; CARCHARODON-CARCHARIAS ; FEATHERED DINOSAURS ; NORTHEASTERN CHINA ; WHITE SHARK ; ORIGIN ; ICHTHYOSAUR ; PRESERVATION ; MORPHOLOGY ; ANATOMY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS类目 | Biology ; Ecology ; Evolutionary Biology |
| WOS记录号 | WOS:000247906700004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/3331 |
| 专题 | 中科院古脊椎所（2000年以后） 古低等脊椎动物研究室 |
| 通讯作者 | Lingham-Soliar, T (reprint author), Univ KwaZulu Natal, Private Bag X54001, ZA-4000 Durban, South Africa. |
| 作者单位 | 1.Univ KwaZulu Natal, ZA-4000 Durban, South Africa 2.Univ N Carolina, Dept Biol, Chapel Hill, NC 27599 USA 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lingham-Soliar, Theagarten,Feduccia, Alan,Wang, Xiaolin,et al. A new Chinese specimen indicates that 'protofeathers' in the Early Cretaceous theropod dinosaur Sinosauropteryx are degraded collagen fibres[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2007,274(1620):1823-1829. |
| APA | Lingham-Soliar, Theagarten,Feduccia, Alan,Wang, Xiaolin,&Lingham-Soliar, T .(2007).A new Chinese specimen indicates that 'protofeathers' in the Early Cretaceous theropod dinosaur Sinosauropteryx are degraded collagen fibres.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,274(1620),1823-1829. |
| MLA | Lingham-Soliar, Theagarten,et al."A new Chinese specimen indicates that 'protofeathers' in the Early Cretaceous theropod dinosaur Sinosauropteryx are degraded collagen fibres".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 274.1620(2007):1823-1829. |
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